The need for Pipeline Optimisation
By Jonathan Theakston, Operations Director (Simulation Software Limited)
Published in the September edition of World Pipelines Magazine, 2016
Many pipeline operating companies are focusing on optimising the performance of their pipelines and the focus is not only driven by a desire to maximise the financial return from the pipeline asset, it is also driven by a desire to be safer, greener and more ethical. If a pipeline can be optimised to minimise its energy usage, it follows that the operating costs and the greenhouse gas emissions will also reduce.
Pressure Safety Valves for Heat Exchanger Tube Rupture
High Pressure Protection
By Glyn Addicott, Operations Director (Hydraulic Analysis Limited)
This paper on our work was presented at the 3rd Hazards Asia Pacific Symposium in Kuala Lumpur in April 2015.
A Shell & Tube Heat Exchanger Overpressure Protection Joint Industry Project (STHE JIP) was undertaken and managed by the Energy Institute (EI). HAL were involved with the dynamic simulation section of the JIP on the Steering Committee. The key deliverable of the STHE JIP was to look at alternatives to burst discs for heat exchanger high pressure protection. The work undertaken by HAL considered the use of spring relief and pin valves for high pressure protection and the published guidelines cover this new development. The modelling included calibrating the response and capacity of different relief devices by interpreting the performance testing which was undertaken by the University of Sheffield.
We modelled the impact of fast transient tube ruptures on various STHE design geometries, and assessed the impact of the pressure wave in the adjoining pipework. This ensured consideration for overpressure of the low pressure side, connecting piping and the effects upstream and downstream of the exchanger in the low pressure piping system where the tube failure occurred.
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